TextBox Customization Malfunction

Question

I needed to create a textBoox that completely blends with the background so I used this XAML:

<TextBox Text="Hello" VerticalAlignment="Bottom" Name="txtAsk" FontFamily="Consolas" Margin="8,0,0,0" TextWrapping="Wrap" AutoWordSelection="True" KeyDown="onEnter">
                <TextBox.Template>
                    <ControlTemplate TargetType="{x:Type TextBox}">
                        <Grid>
                            <Rectangle  Stroke="{StaticResource ResourceKey=detailMarkBrush}" StrokeThickness="0"/>
                            <TextBox Margin="4" Text="{TemplateBinding Text}" BorderThickness="0" Background="{x:Null}" SnapsToDevicePixels="True" />
                        </Grid>
                    </ControlTemplate>
                </TextBox.Template>               
            </TextBox>

However, now the problem is, when I attached a button to the interface and triggered it to show the content of the TextBox in a message window, it only shows the default text even after changing the value inside the text box! The button code is as follows:

private void btnTriggerEnter_Click(object sender, RoutedEventArgs e)
        {
            MessageBox.Show(txtAsk.Text);
        }

I am not sure where I screwed up. Please comment if any other detail is required. My MainWindow has this code:

public MainWindow()
        {
            InitializeComponent();
            Loaded += new RoutedEventHandler(MainWindow_Loaded);         
        }

Thanks.

score 1 · Accepted Answer · edited May 23 '17 at 12:33

1

You should use:

Text="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Text}"

That's because TemplateBinding only gives you a OneWay source (in the underlying Binding), you need TwoWay.

edited May 23 '17 at 12:33

Community

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1

answered Apr 10 '15 at 19:20

Colin Smith

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TextBox Customization Malfunction

1 Answers1